Replacing Chevrolet Niva antifreeze: instructions, draining, flushing, filling

Niva Chevrolet: cooling system

Engine operation at normal temperature conditions is ensured by the functioning of the components included in its composition.
This is a closed-type pipeline with forced ventilation. List of elements providing heat exchange:

1. Pump for pumping water.
2. Thermostat.
3. Fans.
4. Radiator.
5. Expansion tank.

The pump operates under the influence of centrifugal force. As the blades rotate, coolant is pumped, creating a pressure difference, so the antifreeze moves along the line.

For the efficient functioning of the heat exchanger, which includes a radiator, a thermostat is provided to open and close the movement of coolant in a circle. The latter is necessary to maintain balance in the system and has factory settings - it opens at a temperature range from 75 to 80°C.

The radiator contains two tanks connected horizontally by aluminum channels:

• one receives coolant;
• from the other - coolant comes out.

Heat exchange is provided over the radiator area.

When heated, a liquid tends to expand. To avoid the creation of excess pressure, an expansion tank is designed to receive it. The latter is equipped with a cover with a bypass valve to increase the pressure in the system. By switching to a closed type, it was possible to increase the boiling point and eliminate losses due to leakage from the tank.

5.4. Flushing the cooling system

If the coolant was replaced irregularly or the concentration of antifreeze in the coolant decreased, then the efficiency of the cooling system will be reduced by due to the fact that the permeability of the channels and hoses of the cooling system will decrease due to the formation of rust, carbon deposits or other deposits on their walls . In this case, the cooling system must be flushed.

The radiator must be flushed regardless of the engine.

To flush the radiator, drain the coolant from the cooling system, then disconnect the hoses from the base and upper radiator reservoir. Insert a garden hose into the top hose of the radiator and run water through the radiator until water comes out clean from the hose at the base of the radiator. If the radiator is very dirty, wash it using a special cleaner. You can also reverse flush the radiator by inserting a garden hose into the lower radiator hose.

Carry out engine flushing as follows.

Initially, antifreeze is poured into the Chevrolet Niva cooling system from the factory, the service life of which is extremely short. And also the composition and additives used are much inferior in quality to modern liquids made on a carboxylate or polypropylene glycol base. Therefore, many car enthusiasts prefer to replace it with antifreeze, which better protects the cooling system, when replacing it for the first time.

Fuel tank characteristics

The fuel tank of this model has almost sixty liters, or more precisely 58. On average, per hundred kilometers you have to spend 8-9 liters of AI-95, Premium-95 or AI-92 gasoline. Features of the fuel container:

• the tank is located directly under the rear seat;
• in the upper part there is a small hatch under which the fuel pump is installed;
• The sensor will help determine the level of fuel fluid and the amount of gasoline.

There are other Chevrolet Niva filling tanks, many of which are included in various systems.

Types and properties of coolants for cars

The best option for effectively lowering the temperature is antifreeze. This is a liquid that contains:

• distilled water;
• ethylene glycol or propylene glycol (less aggressive substance);
• additional additives.

Antifreeze based on ethylene glycol. Additives, in turn, are divided into the following subtypes:

• silicate;
• based on organic acids (carboxylate);
• hybrid antifreezes (based on the two described above).

Carboxylate coolants have good heat transfer and high cooling temperatures. They reliably fight fat deposits and have a longer service life. Silicate antifreezes perfectly prevent corrosion and reduce the temperature of aqueous solutions. They are considered universal.

Carboxylate coolant after 60,000 km.

Depending on the additives used, a high-quality coolant must have a high boiling point and thermal conductivity. Also not to be exposed to freezing in the winter season, maintaining its performance. Do not form scale or foam.

The device of the stove of the Niva Chevrolet car

The Chevrolet Niva is equipped with a liquid-type heater. It supplies warm air to the cabin and cools the engine, overheating of which can lead to disastrous consequences and costly repairs.

Without air conditioning

The Chevrolet Niva heating system consists of the following elements:

• ventilation duct;
• windshield heating duct;
• intermediate body;
• air intake filter;
• fan;
• interior heating duct;
• foot heating duct;
• heater radiator.

The intensity of the hot air supply is regulated using dampers. The air duct system distributes the heat flow to various areas of the cabin: windshield, side windows, legs, doors, etc. In addition, there is a four-speed air supply switch.

Heating system for the interior of a Chevrolet Niva car, where 1 is the side deflector air duct; 2 — windshield air duct; 3 - intermediate body; 4 - intermediate air duct; 5 — outside air filter housing; 6 — fan housing of the heating and ventilation system; 7 — central deflector; 8 — air duct for blowing the front passenger’s feet; 9 — facing of control units; 10 — front air duct for blowing the legs of rear seat passengers; 11 — rear air duct for blowing the legs of rear seat passengers; 12 — heater assembly; 13 — air duct for blowing the driver’s feet; 14 - side deflector

With air conditioning

The air conditioning system allows you to regulate the temperature and humidity in the cabin. Before turning on the air conditioner, the heater fan is turned on, and the temperature control knob is set to minimum. Almost the entire air conditioning system is located in the engine compartment. Only the evaporator is brought into the cabin between the heater and the electric motor, providing heat exchange between the incoming air and the refrigerant.

Heater and air conditioner diagram, where 1 - heater housing; 2 — inlet pipe of the heater radiator; 3 — heater radiator outlet pipe; 4 — air conditioner evaporator housing; 5 — evaporator outlet pipe; 6 — evaporator inlet pipe; 7 — fan housing; 8 — control cable for the external air supply damper

As the refrigerant moves through the evaporator tubes, it absorbs heat and turns into a gaseous state. The evaporator fins are cooled, and the fan directs cold air into the cabin and reduces the temperature. Gaseous refrigerant from the compressor under pressure enters the condenser, cools and turns into a liquid state. After this, the liquid is supplied to the receiver, and from it to the evaporator reducer, where it again turns into a gaseous state. A new cycle begins.

When to change coolant

Drain plug

There are several situations that will require you to carry out a mandatory coolant replacement procedure.

1. The color of the coolant has changed. The liquid may take on a rusty color. This indicates the need for replacement.
2. An oil film has formed on the surface of the cooler.
3. Antifreeze often bubbles in the expansion tank of a VAZ 2110. Moreover, there were no prerequisites for such a phenomenon. The Ten is a car for good speeds, because when driving at low speeds, the antifreeze in the expansion tank on the VAZ 2110 often boils. This is because the cooling fan does not turn on.
4. A coolant that is no longer suitable for further use may also boil, the composition of which has changed significantly since it was poured into the expansion tank.
5. Antifreeze is leaking somewhere from the expansion tank on a VAZ 2110. The situation is common, but it cannot be solved by adding or replacing coolant. It is necessary to find where the antifreeze is leaking from the expansion tank of the VAZ 2110. Usually the leak is found on the clamps, although it would not be a bad idea to check the entire system.
6. The coolant level may be normal, during operation it does not emit antifreeze from the expansion tank of the VAZ 2110, the color is normal, but still the boiling process occurs quickly. Most likely, the reason lies in the airlock.

Signs of a damaged cylinder head gasket

In order to detect a malfunction in time and seek help to replace the gasket, you need to know the characteristic signs accompanying the breakdown. With internal burnout, the following may appear:

• white smoke from the muffler, one of the reasons for the appearance of which may be antifreeze entering the combustion chamber;
• foam on the level dipstick, indicating the formation of an emulsion from antifreeze in the oil system;
• By removing the radiator cap, you can see the characteristic oil stains on the surface of the coolant.

External burnout can be detected by the appearance of oil streams on the surface of the block. In all cases, you should contact a specialist as soon as possible to find out the exact reasons and, if necessary, replace the gasket.

Service Motors technicians provide quick and high-quality repairs to all vehicle components at reasonable prices, and details about the services provided can be found by contacting the company manager at the coordinates indicated on the page.

Leaks and problems

When replacing the coolant, you should inspect all pipes and connections for possible problems. After all, when the fluid is drained, it is easier to replace them than to tear them during operation. You need to pay special attention to the clamps; for some reason, many people use ordinary worm clamps. Over time, they squeeze the hoses, causing them to break.

In general, the Chevrolet Niva has several main problems related to the cooling system. It often happens that antifreeze leaves the expansion tank. The plastic on it constantly bursts, which causes leaks. In this case, replacement will be required.

Another problem is antifreeze under the driver's mat, which can cause a sweetish smell in the cabin and also fog up the windows. Most likely the culprit will be a leaking heater radiator. This problem is usually referred to as “a chef’s nightmare.”

There is also a situation where antifreeze is thrown out of the expansion tank. This may indicate a broken cylinder head gasket. This is checked as follows. With the car completely cooled down, remove the expansion tank cap, after which you need to start the engine and rev it up intensively. It is advisable to have a second person so that he can see whether the antifreeze in the tank will bubble at this time.

It is necessary to fill the Chevrolet Niva with antifreeze, strictly observing the established frequency. It is assigned by the manufacturer and amounts to one fill per 40 thousand kilometers. In exceptional cases, if the driver uses the vehicle little, antifreeze can be added once every couple of years.

It should be borne in mind that the volume of antifreeze should be regularly checked and urgently changed if a brownish tint or dark color of the liquid is detected. In addition, replacement of technical fluid is necessary if it does not meet the established density values ​​or the engine requires major overhaul.

How to choose antifreeze?

The creators of this car have already made sure that you don’t have to choose anything; all the necessary brands of coolers are described in detail in the additional instructions. All you need is to remember basic safety rules that will help you avoid harming yourself or your car.

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Replacing antifreeze is a preventative action that should be carried out periodically not only in winter, but also in summer, periodically adding the necessary fluids so that the car always functions well.

Which company is better

“Behind the Wheel” tested coolants in November 2022. Test results

In the survey below we provide recommendations for choosing a coolant manufacturer. We share tips in the comments. Let us remind you that the process of replacing antifreeze on Lada cars is described in this article.

Recommendations for choosing for Chevy Niva

To determine which antifreeze is best to pour into your Chevrolet Niva, you need to know which one was filled from the factory, since each model has a lot of specific nuances. However, in most cases, the choice of coolant depends on the year of manufacture of the car:

• for older models that were produced before 2001-2002, class G12 fluid is suitable;
• for later models (from 2003 to 2010), G12+ antifreeze is suitable;
• for modern models (manufactured after 2010), it is recommended to purchase coolant category G12++.

Also, many people use the domestic mixture Antifreeze class TS-40 as antifreeze. Motorists often speak negatively about Antifreeze, but in its properties this liquid is practically no different from foreign antifreezes. To understand the absurdity of negative reviews, you need to remember that most Chevrolet Niva cars are filled with antifreeze at the factory.

The only major drawback of antifreeze is its shorter service life in comparison with G12 mixtures - in this the domestic cooler is really inferior to its foreign analogues. The recommended replacement frequency is 30 thousand km, and for some antifreezes the interval between replacements can be up to 200 thousand km.

To find out more information, watch the video in which an expert answers the question of what is better - antifreeze or antifreeze:

Replacement process

To replace antifreeze on a Niva Chevrolet, find an inspection hole. You can also work on an overpass or lift. It is important that the car stands strictly horizontally, with mandatory fixation, in order to avoid movement during the work process. If you can't find a perfectly level area, find an area where the front of the machine is slightly higher.

Before draining the antifreeze, perform a few more manipulations - wait until the engine cools down, remove the negative voltage from the battery, and also prepare the tool for work. You will need a ten-socket wrench, a funnel for filling coolant, pliers, a screwdriver, a new portion of antifreeze and a container for draining the coolant. Use a canister, bucket, basin or bottle as a drainage container.

Antifreeze Frostschutzmittel A from Febi Let's start with how to drain the antifreeze. Take a series of steps:

1. Open and secure the hood.
2. Unscrew the cap on the expansion tank. As noted above, wait until the engine cools down to avoid burning your hands. As a last resort, the coolant temperature should not exceed 90 degrees Celsius. Carefully unscrew the cap, take your time. Allow hot air to escape, which helps reduce pressure. After this, unscrew the cap completely.
3. Unscrew the plug from the drain hole, and then wait until all the coolant comes out. Don't forget to place the container first to avoid getting antifreeze on the ground.
4. As soon as the waste fluid leaves the system, screw the plug back into place.

To avoid air locks in the system, discard the tube from the fitting of the throttle assembly. To do this, take a screwdriver or pliers, and then, using the tool, loosen the fastener, and then move it back. Now remove the tube from the throttle body fitting.

Filling with new antifreeze Above we looked at the first stage - how to drain the antifreeze. The next step is to fill the system with new coolant. Remember that the composition must be prepared, because many antifreezes are sold as a concentrate and require dilution with distilled water, in a ratio of 1 to 1. Read the instructions carefully, because they may contain other information.

Next, do the following:

• Pour new antifreeze into the reservoir.
• Monitor the working fluid level. As soon as it comes out of the throttle assembly, return the hose to its place and install the clamp.
• Fill the cooling system. The antifreeze level should reach the MAX line.
• During the filling process, press the radiator tubes several times to prevent plugs from forming.
• After filling the cooling system, screw the cap on the expansion tank.

Bi-xenon or LEDs, which is better The main process of replacing antifreeze is completed. Now start the Chevrolet Niva engine and leave it running until the fan starts. After the last one is triggered, check what kind of air comes out of the heater. If there is a cold flow, this indicates the presence of air pockets. In such a situation, open the cap on the radiator, start the engine and let it run for 5 minutes. Afterwards, turn off the engine and close the cap on the radiator.

After opening the second circle in the cooling system, the antifreeze level decreases. Wait until the engine cools down, then top up to the required volume (if required). After 2-3 days of operation, check the coolant level again, and also pay attention to the color of the antifreeze.

If it has a reddish tint, it means the system is filled with a fake. In such a situation, the coolant needs to be changed. If you need to get rid of air jams, the principle will be the same as described above.

Replacing antifreeze in Niva Chevrolet cars is possible even for novice car owners. To solve the problem, it is not at all necessary to go to a service station, because all the work can be done with your own hands. Video: How to drain antifreeze on a Chevrolet Niva in 15 minutes!

If the video doesn't show, refresh the page or click here. Prudent car owners make sure their car runs smoothly. All systems must be normal: power, ignition, cooling and lubrication. During operation, a large amount of heat is released from the motor. To prevent it from overheating, it is necessary to maintain the recommended temperature. This function is performed by a special coolant (coolant)

Notes and recommendations

After draining the liquid again, it is imperative to wait for the block to cool down to 40-50 degrees, and under no circumstances pour cold liquids into a hot block (especially in winter). During each filling process, check whether hot air is coming from the stove and whether an air lock has formed. Try not to breathe too much fumes from hot antifreeze. Rubber gloves are required, glasses are advisable. Every day I inhale the divine smell of gasoline and oils and do not feel any discomfort. But my body reacts much worse to hot antifreeze vapors. Headache and nausea are present, and I know for sure that I’m not pregnant))

Stages of replacing Chevrolet Niva coolant

When switching from antifreeze to antifreeze, it is necessary to flush the cooling system. This is done so that the new liquid does not lose its properties when mixed. Also, due to the different chemical composition, a precipitate or flakes may form. Therefore, the correct procedure between draining and filling should include a flushing step.

This model is quite popular, so many people know it under other names:

• Chevrolet Niva;
• Chevy Niva;
• Shniva;
• VAZ-21236.

We will consider the instructions for replacing the coolant using the example of a 1.7-liter gasoline engine. But there is one nuance: cars after the 2016 restyling have electronic control of the gas pedal.

Accordingly, there are no pipes for heating the throttle valve. Therefore, we will consider bleeding air on this modification. You can also familiarize yourself with the nuances of replacement on a regular Niva 4x4, the replacement on which we also described.

Coolant drain

To drain the antifreeze, you need to place the car on a flat surface, open the cap of the expansion tank and wait a little until the temperature drops below 60°C. For further convenience, remove the decorative plastic protection on top of the engine.

Further in the instructions we are recommended to turn the temperature regulator to maximum. But it is useless to do this. Since the temperature control in the Chevrolet Niva occurs by moving the air damper. And not by blocking the radiator as in old VAZs.

After the machine has cooled down a little, we begin the draining process itself:

If you stand in front of the car, at the bottom right, there is a plastic valve on the radiator that closes the drain hole. We unscrew it to drain the antifreeze from the radiator (Fig. 1). When unscrewing, be careful not to lose the rubber O-ring.

In this way, we completely drained the old fluid, but in any case, a small part still remains in the system, distributed among the engine channels. Therefore, in order for the replacement to be high-quality, we proceed to flushing the system.

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How much to pour?

Antifreeze in a car, according to the manufacturer’s recommendations, should be changed after 40 thousand kilometers or after two years of operation. In this case, it is necessary to constantly monitor the condition of the coolant and check its level. If it has darkened or become cinnamon in color, then it needs to be changed. If the level is below the required level, add water or antifreeze. Replacement may be required if the coolant poured into the car does not meet the density.

The required volume of liquid to be filled is 10 liters. It is advisable to fill with coolant specified in the owner's manual.

Coolant

What will you need?

To carry out the replacement, you will need an inspection hole, a lift or an overpass. The machine must be installed horizontally and secured so that it cannot roll during work. The front of the machine should be installed higher than the rear. The procedure is carried out only on a cold engine. To carry it out you need to prepare the following tools and materials:

• spanner set to “10”;
• pliers;
• screwdriver;
• funnel;
• container for draining waste liquid;
• new antifreeze;
• clean rag.

A watering can can be made from a plastic bottle by cutting it in half. A canister or plastic water bottle is suitable as a container.

Flushing the cooling system

If the Chevrolet Niva cooling system is not clogged, but is simply undergoing a scheduled replacement, then we use ordinary distilled water for flushing. To do this, close the drain holes and pour distilled water into the expansion tank.

Then close the tank cap and start the engine. We warm it up until the thermostat opens to flush both circuits. Next, turn it off, wait for it to cool and drain the water. To achieve a good result, it is recommended to do this procedure 2-3 times.

If the car system is heavily contaminated, it is recommended to wash it with special chemical solutions. For these purposes, washes from well-known brands, such as LAVR or Hi Gear, are suitable. Recommendations, as well as instructions, are usually printed on the back of the container with the composition.

Filling without air pockets

To properly fill new antifreeze into a Chevrolet Niva, you need to perform a number of steps. After all, it depends on whether an air lock forms in the system or not. We will close the drain holes in stages, so for now we will leave them open:

1. We begin to pour antifreeze into the expansion tank, as soon as it flows through the drain hole in the radiator, we put the wing plug in place.
2. We continue the flood until it starts flowing from the hole in the block. After which we close it too. The drain bolt on the block must be clamped with a slight force, approximately 25-30 N•m, if you have a torque wrench.
3. Now we need to bleed the air from the top of the radiator. To do this, we find a special plug, the location of which is shown in the photo (Fig. 3). We unscrew it a little, continue to pour antifreeze into the tank, as soon as it flows, screw the cap back into place.

The system is completely filled with new antifreeze, now all that remains is to start the engine, wait until it warms up completely, and check the level. Some people advise starting the car with the reservoir open and closing it after 5 minutes to get rid of air pockets as much as possible. But when replacing according to these instructions, they should not be there.

Chemistry

Cooling flush Lavr, single
There are more than two dozen cooling system flushes, maybe more, but I’m talking about what I use myself and not only in cars of the Niva family. In this case, the product of the company. I've probably done about 50-70 cooling system flushes myself with this product at this point. Why did I like him? According to two indicators. The first is humane pricing and the opportunity to work directly with a Russian manufacturer. The second is its chemical characteristics. If no special explanation is needed for the first point, then I will dwell separately on the second.

Cooling flushing or engine flushing can be “soft” or “nuclear”. This is my definition, and it does not appear in the literature)))) As I said above, “nuclear” washing can clean everything to a shine, but clog both radiators, “soft” - may be less effective, but more humane in relation to the whole system.

A little from the piggy bank of the “old school of motorists.” For a long time I used citric acid to flush the system. It works not bad, but compared to the same laurel it is less effective. On the “motorists” forum there are masters who recommend and use concentrates for cleaning kettles and washing machines. And they even talk about a good result. But for some reason it seems to me that scale in a kettle and a chemical film from antifreeze are not the same thing.

How to remove air from the cooling system of a Chevrolet Niva engine?

Before proceeding with a procedure that will allow air to be released from the vehicle’s engine cooling system, the car owner should prepare. To do this, he needs to install the machine on a flat surface. This action is done to make work more comfortable. To remove air from the engine cooling system, the car owner needs to acquire certain tools, namely: a Phillips screwdriver, as well as a pair of keys for removing the clamp.

It is also necessary to remember that the indicated work must be performed on a cooled engine of the machine. Based on the information provided, after the engine has been turned off, it should be given 10 minutes to cool down. Next, you need to unscrew the cap of the expansion tank, after which you should loosen and release the clamp of the water pipe. Due to the fact that antifreeze enters the engine of a Chevrolet Niva vehicle through it, you must be extremely careful not to damage the pipe. After all the air has been removed from the car's air system, antifreeze will flow from the tube. This means that the car owner needs to return the clamp to its place. After the pipe has been installed in its place, the clamp is tightened tightly, it is necessary to fill the expansion tank with antifreeze. It is recommended to fill the container to the maximum level.

Also, it should be noted that while performing the work presented, it is advisable to check the entire cooling system for leaks. It is recommended to immediately check the heater of the Chevrolet Niva vehicle. If the air circulation is appropriate and the flow is warm, then there are no air locks.

Consequences of untimely replacement

Briefly about the consequences of untimely replacement of refrigerant:

1. Deposits will form in the cooling system. Loss of refrigerant properties will lead to the appearance of sediment, which will primarily clog the expansion tank and radiator unit. Because of this, antifreeze will not be able to circulate effectively through the cooling system lines.
2. The heater will not work efficiently. The performance of the stove will be impaired as a result of obstruction of the pipes due to the formation of deposits in them. This problem usually occurs during the cold season.
3. The car engine will overheat. If replacement intervals are violated, the life of the refrigerant will expire, causing it to lose its properties. Because of this, antifreeze will not be able to effectively cool the engine, which will ultimately cause overheating. Constantly driving a Daewoo Nexia with an overheated engine will lead to the destruction of the inter-ring partitions on the internal combustion engine pistons. Because of this, the plane on the blocks where the cylinder head is installed will be curved. Also, constant overheating will lead to rapid failure of the seals. They will begin to ooze and leak grease, so you will have to look for the oil leak.

Diluting the concentrate and adding new antifreeze

It is necessary to pour new antifreeze into the expansion tank according to a certain algorithm, which will be presented below.

Filling new refrigerant into the cooling system of a Chevrolet Niva car is carried out as follows:

• If the owner of a Chevrolet Niva vehicle uses concentrated coolant, then it must be diluted with distillate. The ratio according to which the indicated liquids should be diluted is specified in their instructions. In most cases, this is one to one, but it should also be noted that the refrigerant in the expansion tank must be at least 40%. Before starting to fill in antifreeze, the vehicle owner should make sure that all lines and pipes are in optimal condition. You also need to check that the clamps are sufficiently tightened;
• The finished mixture is poured into a reservoir intended for antifreeze, namely into the expansion tank. It is necessary to fill the container slowly to prevent the formation of an air lock in the vehicle’s cooling system. The refrigerant is filled almost to the maximum level;

Filling with antifreeze

• At the next stage, you need to make sure that the places where the thermostat connects to the cooling system pumping device, radiator and pump are sealed. In most cases, a white coating appears in the areas where leaks occur. In addition, if faults are detected in the main line, they should be eliminated;
• Afterwards you need to close the cap of the expansion tank, which is located in the engine compartment, well. Next, the car owner needs to start the engine of a Chevrolet Niva car and let it run at high speeds for a certain time, waiting until it warms up;
• After the car engine warms up, the temperature control sensor should signal the activation of the ventilated device. At the presented stage, it is possible to turn off the engine of a Niva Chevrolet vehicle, after which you need to check the refrigerant level in the expansion tank again. In a situation where the car engine is hot, the volume of coolant should be slightly less than the maximum, but more than average;
• Next, the car owner needs to once again start the engine of the Chevrolet Niva, which in the presented case should operate at medium speed. This action helps to get rid of air in the car’s radiator unit;

• 
  Radiator of a Chevrolet Niva car

• At the final stage, it is necessary to turn off the vehicle’s engine, and then wait until its temperature drops to the optimum. After the car engine has cooled down, you need to check the antifreeze level, which should not be below the minimum mark. In a situation where the above actions were performed correctly, the temperature control sensor should show 80-90 degrees Celsius.

Pre-check the thermostat on the Niva Chevrolet

Of course, no one will remove the thermostat for fun. Just for the preliminary check, we will carry out several simple operations in order to make sure that it is not working or, conversely, that it is working properly.

To do this, start the cold engine and touch the lower radiator pipe. It should be cold.

This means that the thermostat is closed and the coolant flows in a small circle: expansion tank, pump, thermostat valve, cylinder head and cylinder block, throttle heating system (in an injection engine), heater radiator.

As soon as the engine warms up to operating temperature (82-85 degrees), as can be judged by the temperature gauge on the dashboard, the lower radiator hose should begin to warm up.

This indicates that the thermostat valve has opened and antifreeze flows in a large circle through the radiator of the cooling system. Fast and easy. If the hose begins to warm up when the engine is cold or does not begin to warm up when the engine is hot, the thermostat must be checked in more detail or replaced. Let's start with replacement.

What means can you use to effectively flush a stove radiator?

Most car owners are interested in what kind of detergent composition to rinse the heater heat exchanger in order to maximally free its channels from various deposits and contaminants. Naturally, ordinary water is not suitable for this. The principle of cleaning a stove radiator is precisely based on filling its channels with a liquid substance that can destroy and clean the deposits of scale and corrosion that have formed on the walls of the lines. Such means include:

• flushing compounds for cleaning the cooling system,
• household descalers,
• citric acid, vinegar,
• soda solution or whey,
• carbonated drinks like Coca-Cola.

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It should be noted that when starting the process of self-washing the Nexia stove, it is necessary to take into account the properties of the heat exchanger material. Alkali solutions are absolutely not suitable for flushing aluminum radiators, as they cause an instant metal oxidation reaction, significantly worsening the situation. A similar reaction will occur if an acid solution is poured into a heat exchanger made of copper.

One of the effective means for flushing the radiator of the Daewoo Nexia stove is a solution of citric acid in hot water.

Replacement frequency, what antifreeze to fill

In the maintenance information for Niva Chevrolet, it is recommended to change antifreeze every 60,000 kilometers. But many car enthusiasts are not happy with the flooded antifreeze, which becomes unusable by 20 thousand. Dzerzhinsky antifreeze is usually filled from the factory, but there is also information about pouring red antifreeze.

When choosing coolant, it is better to use a concentrate rather than a finished product. Since it can be diluted in the required proportion, because after flushing there is still some distilled water left in the system.

A good choice would be Castrol Radicool SF concentrate; it is what dealers often recommend for use. If you choose ready-made antifreezes, then you should pay attention to the red AGA Z40. FELIX Carbox G12+ or Lukoil G12 Red with good reviews.

Prevention measures

A huge portion of breakdowns can be avoided if you treat your own car accordingly. Yes, no one excludes unforeseen situations, but simple preventive measures should definitely become the norm for you when handling your car:

• Constantly check the coolant level in the reservoir and top up if necessary;
• For your VAZ 2110, do not skimp on high-quality coolant;
• Do not use plain water as a coolant, as it has a lower boiling point and promotes scale formation and corrosion inside the cooling system;
• Always look at the readings of the coolant temperature sensor located in the cabin. Avoid situations where the arrow crosses the red line.

It is obvious that the CO is the most important unit in the engine compartment, the efficiency of which determines the condition, performance of the engine and more.

Therefore, it is extremely important to treat the cooling system with care, monitor its condition, and take timely actions to eliminate any malfunctions that arise. Sometimes on the highway you see the following picture: a passenger car is standing with the hood raised, steam is rising from the engine compartment, and a motorist is running around the vehicle. , sometimes the car passengers are with him.

Sometimes on the highway you see the following picture: a passenger car is standing with the hood raised, steam is rising from the engine compartment, and a car enthusiast is running around the vehicle, sometimes the passengers of the car along with him.

How does the engine get clogged?

Many car owners are faced with the following situation: coolant that has just been poured into the engine gradually turns black. This is due to the fact that when filling, clean liquid passes through dirty radiator tubes, as a result of which it changes color and simultaneously clogs the remaining clean hoses and pipes of the engine. As a result, engine power drops to 10% and characteristic noise appears in the radiator.

At the same time, you need to understand that the radiator is contaminated not only by dust, but also by specific deposits. The composition and structure of these deposits depends on the coolant used by the driver. In 90% of cases the cooling system is flooded:

• Water. Moreover, some car enthusiasts still pour water directly into the radiator. During the summer months, this leads to the formation of scale on the pipes, which leads to clogging of the entire system. In winter, the water in the radiator turns into ice cubes, which renders the engine unusable.
• Antifreeze. Antifreeze effectively cools the engine (especially in winter), but after 1-2 months its gradual decomposition begins. Decomposition products enter the inside of the cooling system along with the liquid and clog the pipes.

Expert advice

If you are in doubt about how much antifreeze is in the cooling system of the VAZ-2110, it is better to consult the operating instructions or the manufacturer. Experts advise filling the “ten” with at least seven liters of coolant. Inexperienced drivers may think that 6 liters is quite enough, but it is always better to play it safe and add a little more. After all, a lack of antifreeze in an internal combustion engine can negatively affect its service life.

You will get the same answer if you ask the question how much antifreeze is in the cooling system of the VAZ 2112. You can replace 7.5-8 liters of anti-freeze yourself within 40 minutes. If you are still not sure how many liters of antifreeze are poured into the car’s cooling system, then there is a way to find out the correct answer - look at the operating instructions.

Most likely, it will indicate not only the amount of liquid, but also the recommended type of antifreeze.

Replacement frequency, how much and what kind of fluid is needed

According to the manufacturer's recommendation, it is necessary to replace antifreeze or antifreeze on VAZ-21214 cars every 3 years or after a mileage of 60 thousand kilometers.
If the car is used in more severe conditions, then it is advisable to replace it more often - every 30-40 thousand kilometers. In addition to the recommended coolant change intervals, there are other reasons why it is necessary to change the fluid in a car's cooling system:

• loss of coolant properties. You can check the quality of the antifreeze used using a test strip, which is sold in the same places where the liquid itself is sold. Place the strip in the expansion tank, then pull it out. The strip comes with a color scale, according to which you can understand how much longer the car can be used before replacing the coolant;
• change in color of the coolant to tan or red. This means that rust has appeared in it;
• the appearance of sediments, flakes and dense formations in the liquid.

In all cases, it is necessary not only to replace, but also to check the entire engine cooling system for serviceability.

The coolant for the VAZ 21214 Niva injector should have a freezing point no higher than -40 degrees. Typically, the manufacturer fills in TOSOL TS-40 (manufacturer in Dzerzhinsk). When replacing antifreeze, it can be replaced with antifreeze with G12 approval; it is safer for the entire cooling system. You can also use original Lada G12 antifreeze, which is suitable for all cars of this manufacturer.

Antifreeze volume table

Antifreeze Niva, basic practical issues

Answer: AvtoTAZ poured blue-green antifreeze for a very long time. But since 2012, almost every car I've seen has been a red G12. But there are still batches of cars filled with antifreeze.

What can be added and what can be mixed?

Answer: G11 and G12 cannot be mixed. Translated into Russian, blue-green and red-orange cannot be mixed.

• How to competently switch to G12? If you simply drain G11 and fill in G12, there will be no benefit except wasted money. The result will only be obtained after a “chemical” cleaning of the cooling system.
• Why do you recommend replacing “blue” with “red”. And so everyone works well. True, I have already changed several thermostats.

Answer: According to German articles on cooling, one of the reasons for thermostat failure is precisely low-quality antifreeze. We are talking about the film that jams the thermostat valve.

“Red” antifreeze is filled in, but for some reason when the engine heats up, it expands very much (can be seen from the level in the expansion tank).

Answer: it was filled with low-grade body slurry. When heated, water increases in volume up to 8-10%, antifreeze within 1%.

Antifreeze Niva, concentrate or ready-made?

Answer: Now I supply ready-made antifreeze, but we have a large country, so in a number of regions antifreeze with a crystallization temperature of minus 40 and below is required. Then you need to order the concentrate and dilute it according to your operating conditions.

The next question follows from the previous one and it usually comes from Yakutsk, Irkutsk, the Yamal Peninsula and other “resort” places in our homeland. What are the ratios for greater frosts than minus 40?

Answer: I provide data from Neste documentation. 50% -50% (water-concentrate ratio) – pour point minus forty.

40% water - 60% conc. freezing threshold minus 50 degrees. 25% water - 75% conc.

the freezing threshold is minus 65-70 degrees. But don’t get carried away. The freezing threshold increases, but other characteristics worsen.

What antifreeze do you use and complete orders?

Answer: I prefer the products of the Elf-Total concern and the antifreeze of our northern neighbors, the Finns. Manufacturer: Neste. This is if we talk about applicability to the Niva and UAZ family.

Antifreeze Niva, how much do you need to replace?

Answer: There are about 8 liters of coolant in the system. It can be drained as much as possible if you park the car on a slope, with the left side at the bottom. When the plugs on the block and radiator are open, almost everything drains. The quantity in Niva and Shnivy is the same.

Sources

• https://chevniva.ru/obem-sistemy-ohlazhdeniya/
• https://avtonomnaya-gazifikaciya.ru/kalina/obem-ohlazhdayushchej-zhidkosti-niva.html
• https://7road.ru/drugoe/kak-slit-antifriz-s-nivy-shevrole.html
• https://sto-AvtoStroy.ru/dvigatel/zamena-tosola-na-antifriz-shevrole-niva.html
• https://AvtoSotka.ru/tyuning-i-remont/kak-promyt-sistemu-ohlazhdeniya-niva-shevrole-2.html
• https://prometey96.ru/obsluzhivanie/zamena-tosola-niva-shevrole.html
• https://nadouchest.ru/skolko-litrov-ohlazhdajushhej-zhidkosti-v-nive/
• https://avtozam.com/vaz/chevrolet-niva/protsess-zameny-ozh/
• https://kraniauto.ru/raznoe/kak-slit-tosol-s-shevi-niva.html
• https://fix-my-car.ru/texnicheskoe-obsluzhivanie/zamena-antifriza/chevrolet-niva-zamena-antifriza.html
• https://AlanSpb.ru/drugoe/promyvka-sistemy-ohlazhdeniya-shevrole-niva.html
• https://avto-prestig.ru/diagnostika-i-obsluzhivanie/skolko-litrov-antifriza-v-shevrole-niva.html

Cooling flushing technology

The process of flushing the cooling system is the same for both the Niva and the Shnivy. What will be described below needs to be done either by yourself or by a master whom you trust and are willing to pay for a whole working day. This is not a cute joke or a figurative comparison, it is the truth. Not a single service will spend time on this, in the amount of time that will be discussed. Distilled water will need about 25-30 liters. So, let's go.

• Place the machine on a slope so that the left side is 10 degrees or more lower than the right. Here we will be saved by a slide, a curb, or, as an extreme option, a jacked starboard side. This is necessary so that everything drains from the block to the last drop.
• We drain all the liquid that has been filled from the radiator and block. Let me digress from the topic for a second. Sometimes cars arrive with no living creatures in the expansion tank. I always remember the story about the baby elephant, Kipling, and the phrase about the muddy green, fetid waters of the Limpopo River))) We returned to washing.
• Fill in about 4 liters of distilled water (hereinafter referred to as DV), then fill in the chemicals and add another 4 liters of DV.
• Let the engine run for 20 minutes or a little more. Nothing bad will happen even if you make a short trip.
• We drain the chemicals and flush the DV system TWICE. Each time, driving the engine until the fans turn on.
• We remove the expansion tank and wash it separately. All the foam and all the dirt settles on its walls during washing.
• Fill in new working antifreeze.